diff --git a/lib/ace/commands/default_commands.js b/lib/ace/commands/default_commands.js
index 108c7efb..77cdfc61 100644
--- a/lib/ace/commands/default_commands.js
+++ b/lib/ace/commands/default_commands.js
@@ -33,6 +33,7 @@ define(function(require, exports, module) {
 
 var lang = require("../lib/lang");
 var config = require("../config");
+var Range = require("../range").Range;
 
 function bindKey(win, mac) {
     return {win: win, mac: mac};
@@ -602,6 +603,100 @@ exports.commands = [{
     exec: function(editor) { editor.toLowerCase(); },
     multiSelectAction: "forEach",
     scrollIntoView: "cursor"
+}, {
+    name: "expandtoline",
+    bindKey: bindKey("Ctrl-Shift-L", "Command-Shift-L"),
+    exec: function(editor) {
+        var range = editor.selection.getRange();
+
+        range.start.column = range.end.column = 0;
+        range.end.row++;
+        editor.selection.setRange(range, false);
+    },
+    multiSelectAction: "forEach",
+    scrollIntoView: "cursor",
+    readOnly: true
+}, {
+    name: "joinlines",
+    bindKey: bindKey(null, null),
+    exec: function(editor) {
+        var isBackwards = editor.selection.isBackwards();
+        var selectionStart = isBackwards ? editor.selection.getSelectionLead() : editor.selection.getSelectionAnchor();
+        var selectionEnd = isBackwards ? editor.selection.getSelectionAnchor() : editor.selection.getSelectionLead();
+        var firstLineEndCol = editor.session.doc.getLine(selectionStart.row).length
+        var selectedText = editor.session.doc.getTextRange(editor.selection.getRange());
+        var selectedCount = selectedText.replace(/\n\s*/, " ").length;
+        var insertLine = editor.session.doc.getLine(selectionStart.row);
+
+        for (var i = selectionStart.row + 1; i <= selectionEnd.row + 1; i++) {
+            var curLine = lang.stringTrimLeft(lang.stringTrimRight(editor.session.doc.getLine(i)));
+            if (curLine.length !== 0) {
+                curLine = " " + curLine;
+            }
+            insertLine += curLine;
+        };
+
+        if (selectionEnd.row + 1 < (editor.session.doc.getLength() - 1)) {
+            // Don't insert a newline at the end of the document
+            insertLine += editor.session.doc.getNewLineCharacter();
+        }
+
+        editor.clearSelection();
+        editor.session.doc.replace(new Range(selectionStart.row, 0, selectionEnd.row + 2, 0), insertLine);
+
+        if (selectedCount > 0) {
+            // Select the text that was previously selected
+            editor.selection.moveCursorTo(selectionStart.row, selectionStart.column);
+            editor.selection.selectTo(selectionStart.row, selectionStart.column + selectedCount);
+        } else {
+            // If the joined line had something in it, start the cursor at that something
+            firstLineEndCol = editor.session.doc.getLine(selectionStart.row).length > firstLineEndCol ? (firstLineEndCol + 1) : firstLineEndCol;
+            editor.selection.moveCursorTo(selectionStart.row, firstLineEndCol);
+        }
+    },
+    multiSelectAction: "forEach",
+    readOnly: true
+}, {
+    name: "invertSelection",
+    bindKey: bindKey(null, null),
+    exec: function(editor) {
+        var endRow = editor.session.doc.getLength() - 1;
+        var endCol = editor.session.doc.getLine(endRow).length;
+        var ranges = editor.selection.rangeList.ranges;
+        var newRanges = [];
+
+        // If multiple selections don't exist, rangeList will return 0 so replace with single range
+        if (ranges.length < 1) {
+            ranges = [editor.selection.getRange()];
+        }
+
+        for (var i = 0; i < ranges.length; i++) {
+            if (i == (ranges.length - 1)) {
+                // The last selection must connect to the end of the document, unless it already does
+                if (!(ranges[i].end.row === endRow && ranges[i].end.column === endCol)) {
+                    newRanges.push(new Range(ranges[i].end.row, ranges[i].end.column, endRow, endCol));
+                }
+            }
+
+            if (i === 0) {
+                // The first selection must connect to the start of the document, unless it already does
+                if (!(ranges[i].start.row === 0 && ranges[i].start.column === 0)) {
+                    newRanges.push(new Range(0, 0, ranges[i].start.row, ranges[i].start.column));
+                }
+            } else {
+                newRanges.push(new Range(ranges[i-1].end.row, ranges[i-1].end.column, ranges[i].start.row, ranges[i].start.column));
+            }
+        }
+
+        editor.exitMultiSelectMode();
+        editor.clearSelection();
+
+        for(var i = 0; i < newRanges.length; i++) {
+            editor.selection.addRange(newRanges[i], false);
+        }
+    },
+    readOnly: true,
+    scrollIntoView: "none"
 }];
 
 });